(I)   in the 1960s and 1970s, Most Economists Believed That

Multiple Choice

(I)    In the 1960s and 1970s, most economists believed that there was a permanent trade-off between inflation and unemployment.
(II)   Today, most economists believe there is no permanent trade-off between inflation and unemployment.

A) Both I and II are true.
B) Both I and II are false.
C) I is true; II is false.
D) I is false; II is true.